406744225 has 6 divisors (see below), whose sum is σ = 504362870. Its totient is φ = 325395360.

The previous prime is 406744201. The next prime is 406744243. The reversal of 406744225 is 522447604.

It can be written as a sum of positive squares in 3 ways, for example, as 1245456 + 405498769 = 1116^2 + 20137^2 .

It is not a de Polignac number, because 406744225 - 2⁹ = 406743713 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8134860 + ... + 8134909.

Almost surely, 2^406744225 is an apocalyptic number.

It is an amenable number.

406744225 is a deficient number, since it is larger than the sum of its proper divisors (97618645).

406744225 is a wasteful number, since it uses less digits than its factorization.

406744225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16269779 (or 16269774 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 34.

The square root of 406744225 is about 20167.9008575508. The cubic root of 406744225 is about 740.9242317245.

The spelling of 406744225 in words is "four hundred six million, seven hundred forty-four thousand, two hundred twenty-five".